How does AI actually work?

Enter the machine.

Five short, interactive labs: you manipulate the real mechanisms behind AI systems directly (real tokenizers, real math, real evaluators), not just read about them. Explorer Mode keeps things plain-language; switch to Engineer Mode (top right) any time you want to see the raw numbers underneath. No sign-up, nothing to install, just start with Lab 01 below.

01TokensWhat does the model actually see?Start here →02Prediction & SamplingHow does the model choose the next token?Enter lab →03EmbeddingsHow can meaning become geometry?Enter lab →04RAGHow do we give it knowledge it wasn't trained on?Enter lab →05EvalsHow do we know it actually works?Enter lab →